Napkin folder



Sept. 20, 1932. I

S. J. CAMPBELL NAFKIN FOLDER Filed March 24, 1928- l 10 Sheets-Sheet 1Fig. 3.

INVENTOR 6 ATTORNEYS Sept. 20, 1932. 5 J CAMPBELL 1,878,437

NAPKIN FOLDER Filed March 24, 1928 110 Sheets-Sheet 2 MYWMZ ATTORNEYS,

S. J. CAMPBELL NAPKIN FOLDE R Filed March 24, 1928 10 Sheets-Sheet 5NVENT R BY MW ATTORN EYS S. J. CAMPBELL Sept. 20, 1932.

NAPKIN FOLDER 1928 10 Sheets-fiheet 4 Filed March 24,

INVENTO R MM1/MX ATTORNEYS Sept. 20, 1932. 5. J. CAMPBELL- 1,878,437

NAPKIN FOLDER Filed March 24, 1928 10 Sheets-Sheet 5 INVENTOR M, fad,

BY v

ATTORNEYS Sept..20, 1932- 5. J. CAMPBELL 1,878,437

' NAPKIN FOLDER Filed March 24, 1928 10 Sheets-Sheet 6 ATTORNEYS Sept-1932- 5. J. CAMPBELL 1,878,437

NAPKIN FOLDER Filed March 24 1928 10 Sheets-Sheet 7 .INVENTOR BY y?"ATTORNEY S Sept- 20, 1932- 5. J. CAMPBELL 1,878,437

NAPKIN FOLDER Filed March 24, 1928 10 Sheets-Sheet 8 A TTORNEYS.

Sept. 20, 1932. v 5. J. CAMPBELL f ,3

' NAPKIN FOLDER 7 Filed March 24, 1928 10 Sheets-Sheet 9 IN VEN TOR.

A TTORNEYS Sept 20, 1932. 5. J. CAMPBELL NAPKIN FOLDER FiledMa'rch 24,1928 10 Sheets-Sheet l0 Iii/9.15.

INVENTOR M 1 a 21% M/ ATTORNEY S Patented Sept. 20, 1932 SAMUEL J.CAMPBELL, OF GREEN BAY, WISCOFTSIN NA'rKrn FOLDER Application filedMarch 24', 1928. Serial No. 264,410.

This invention relates to napkinv folders. I

Broadly speaking, it is the primary object of the invention to produce anovel and sim- 5 plified machine'for cutting and foldingnapiniprovements in kins to the so-called cornucopia form 'or out-.

the desired form and type with a minimum length of paper travel;

the paper is held at all times by the mecha nism acting thereon or bysuitable guides so that it can not become displaced; secondly, 2 byproviding a novel form of creaslng roll whereby the fold is positivelyplucked from the tucker blade instead of being impositively drawntherefrom by friction; thirdly,- by

providing a machine in which the sequence 0 of operations is so closelyrelated that one set of converting mechanism may commence to operate onthe paper While the paper is still positioned by a preceding mechanismprior to its release therefrom; fourthly, the erovision of grooved rollsand guides closely confining the partially folded paper and interactingwith the grooved rollsin such a Way as to minimize the possibility ofirregular action; and fifthly, by operating the cut 9 off rolls at ahigher. peripheral speed than the rate of paper travel so that the paperwill fie cleanly cut regardless of howsoft'it may 0. a "it is my furtherpurpose to'promotethe efficient folding of a cornucopia shaped napkin byproviding one or more sets of folding rolls at an angle to the path oftravel to the path of the paper.

It is my further purpose to provide means .5 for positively ad ustingthe angular position second last fold in the napkin of a partiallyfoldednapkin by twistingit in its planeof movement to bring itsprospectivefold line to the proper angle. It is my further purpose to provide asingle machine capable of handling numerous nap- 555 kin sizes, both asto width and length of sheet, 7

with only a minor adjustment. 7 V i Other objects of the inventionrelate to novel and" improved .motion transmitting connections for theactuation of the several fparts in a manner best adapted to carry outthe aforementioned objects.

In thedrawings: Figure 1 isa developedviewgin front elevation of thevarious componentparts -of the machine which act on the paper. Figure 2is a developed,viewtaken-onthe 7 section indicated at 2-2 in Figure 1.More specifically, it'ismy purpose to pro- .20 mote accuracy in thenapkin folding operations First, by providing a machine in whichvFigurei; is a view illustrating the appearance ofthe napkin at differentpoints inthe 9 course of its manufacture,the various par tiallycompleted napkins, being shown .oppo

site theportions, of the mechanism in Figures 1 and 2, whereby they arefolded to the indicated form.

Figure A is a perspective view ofthe front V or delivery side of themachine;

Figure-5 1s a perspective view of the rear side of the machine. a

Figure 6 is an end elevation on a n en- 1 larged scale of the "machineframe, certain of the actuating connectionsbeing removed in order toshow the location of the several shafts. I

Figure 7 is a detail viewof certain mechanismf for actuating the tuckerblades used inthe final folding operation. I Figure 8 is. a detail viewin end elevation of the mechanism shown in Figure 7..

.Figure 9 is a detail view in perspective showing a development of theactuating con: nections for the tucker blades in maki'ng'the Figure 10is a developedview of the actuating connections for the packer." 1

Figure llis, a developed "view of the actuating connections for thequarterfolding tucker blade. 7 V I V Figure l21s'a rear elevation ofamachine embodyinga modified arrangement :of the final folding rolls,tucking blades and guide tion the folding mechanism illustrated in 4bcontinuously across" triangle plate 17 and parts being removed toexposethe rolls.

Figure 13 is a perspective detailshowing the disposition of the tuckingblades with reference to the rolls in the Figure 12 device. Figure 14 isa diagrammatic detail in cross-section of the complete assembly of finalfolding rolls, guides and'tucker blades as viewed in the plane indicatedat 1414 in Figure 12.

Figure 15 is a view in transverse section through the machine showing inend eleva- Figures 1 to 11 inclusive. H I Figure 16 isa fragmentarydetail in plan of the napkin positioning device illustrated in Figure15. I o p Like parts are identified by the same reference charactersthroughout the several views. j 7 V 'P'r'inoipZe of operation 7 I shallfirst describe the principle ofoperation of the machine with particularreference to the diagrammatic views, Figures 1, 2 and 3 and thesectional view Figure 15. Thereafter the specificmeclianism whichactuatesthese parts will more readily be understood. f f,

As previously indicated, the machine is a duplex machineeach sideof'which functions independently of the other side to producecornucopia-folded napkins from the web ofpaper fed thereto.

' ,The paper webs 15 pass over guide rolls 16 and the usual triangleplate 17 whereby the paper is longitudinally folded along'its cen-' terline.

I The feed rolls 18 and 19 draw the paper feed the folded webs to thecreasing and cutting rolls 20 and 21. Roll 21 has alongitudinal slot at22 in-itsperiphery and roll 20 has a knife 23 which registers with theslot tocut the once folded web into lengths as shown at 25 inFigure 3. lF

The several lengths ofpaper are then fed by means hereinafter to bedescribed across the faces and transversely of the line of bite of thefolding rolls 26 and 27. V A tucker blade 28 istimed to strike eachlength of paper'intermediate its ends to-press its cen-' tral portionbetween the foldingrolls 26 and 27, whereby a transverse or quarter foldis made to leave the paper in the form of a square of four thicknessesas shown at" 30 bite between these rolls.

As a result of this operation the first cornucopia-fold is made in thenapkin at 34, leaving it in the form shown at 35 in Figure 3.

Thelin'e of fold is intermediate the margins of thenapkin andis at a 30angle.

' The final set of folding rolls is shown at 36 and 37. Tucker blades38cooperate therewith to make a fold 39 at the opposite side of the napkinblank corresponding in location to fold 34:, but bending the corner ofthe napkin onto the opposite face thereof from the face upon. which thefirst corner was pressedby-the first cornucopia-fold.

The second cornucopia-fold leaves the napkin completed in the form shownat 40 in.

Figure 3 with its opposite corners folded oppositely upon differentfaces thereof to provide the free flaps 41 and 42 which may be graspedalternatively according to the sideof the napkin which is uppermost.

The completed napkins e0 are delivered on edge into the delivery troughs43 in which packing membersll are reciprocable to compress the napkinsinto suitable form for peakaging as shown in Figure 2.

Mechanism 7 Having now described the principle of op eration, I shallpoint out the disposition of the several parts in an actual machine.

The machine'frame comprises end standards. 4 5 and 46 joined at suitablepoints by -tiej bolts or spacers 47. Brackets at 48 and 49 support therolls 50, from which webs of paper arefed to. the two parts of themachine. Most of the shafting is journaled in both of the end framemembers l5 and l6 and can ries duplicate parts for the performance oflike functions at either side of the machine. I The guide rolls extendtransversely of the machine and each is carried by brackets at the topof one'of the end members 15 or 46 as is clearly shown in Figures Al and5. These same brackets support the triangle plates whichextenddownwardly with their points projecting toward the center of themachine and toward the line of bite between the felt covered feed rolls18 and 19. These feed rolls are mounted upon shafts 52 and 53extending-lengthwise of'the machine and parallel to each otherinsubstantially a horizontal plane. Shaft 52 carries a pinion 54: drivenby a gear 55 on shaft 56 which carries the matrix roll 21 andconstitutes the main drive shaft for the machine to which poweris'applied throughzpulley 57. V

The creasing and cutting rolls 20 and 21 mounted on shafts 58 and 56,respectively,-are likewise parallel in 1.1l1OIlZOI1tEtl.PlMI6, but areoffset fromthe line .of'bite of the feed rolls 18 and 19' so that thefolded web is held snugly: about the peripheriesof rolls Band 21. Theperipheral speed of thexcut off rolls 20 andi21 is somewhat higherthan'that of the feed rolls and I. have found that thereby a clean cutis assured regardless of the chara-cterof the paper.

Immediately below the: line of bite between rolls 'and 21, is a conveyorsystem for receiving the blanks'or lengths of once folded websandsupporting them in "a position for the quarter fold. The conveyorincludes a rear belt or tape running over roll 61 and pulleys 62 and'63,and a front beltor tape 65 running over pulleys 66 and 67. The roll 68interacts with roll 61 to feed the paper downwardly between tape 60 andguide plates 69 and 70 whichihave edges'approximately upright for theguidance of the web. Plate 69has its apex fitted into a groove in roll68 and strips thepaper therefrom while tape r arm 72. The tuckerblade.is notched at 71,

as is best illustrated in Figure 11, to pass tape 60 so that the tapemaybe extended past the range of movement of the tucker blade foradequate support of theadvancing 1 sheet.

Rolls 26 and 27 maybe disposed immediately beneath the primary shaft 56of the machine and have their axes disposed in a common vertical planeextending lengthwise of the machine. The rolls are preferably providedwith yieldable inserts of rubber or the like as shown at 73, which areso synchronized as to bite the paper at the time a V fold thereof isthrust between them by tucker blade 28. The yieldable inserts projectnormally beyond the peripheries of their respective rolls and hencecontact initially somewhat to the left of a plane, oining the axes ofthe rolls as viewed in Figure 15. Thereby the paper i'spositivelyplucked from the tucker blade and firmly'creased at its fold line formedbetween guideplate's 69 and 7 0;: a

As the quarter folded napkin leaves rolls 26 and 27, it isheld to theperiphery of roll 27 by means of a belt or tape which runs about roll 26and'pulley roll 76; This, belt delivers the napkin to another conveyorsystemp which includes the upright guides 77 and78, and a'co-operatingset of'belting or notched, as'shown at 83'inFigure 9, inorder that the operating edges of these "tucker blades may pass theconveyor beltsor tapes 79.

Each of the two pairfof folding rolls'31 and 32 is 'inclined downwardlyin a vertical plane toward the center of the'machine. The inclination ofthe rolls makes it inadvisable to mount tucker blades 33' upon swingingarms such as are used for the support of tucker blade 28. Accordingly, aguidewayg85- is provided'upon which .cross heads 86 .aregreciprocable tocarry thetucker blades 33.

. After the napkin receives itsfirst cornucopia-fold between rollers 31and 32, it leaves such rollers on a table 90jwhich is inclined tocorrespond with the tangential plane which includes the line of bitebetween such rollers.

The newly folded margins of theblank 35 delivered by these rolls willnecessarily be in parallelism with the line of bite between the rolls atthe time of delivery. Inasmuchas the line'of bite between rolls36 and 37is likewise parallel to a ve rtical plane including the newly foldededge of the blank, and inasmuch as the final fold'must' be made atan-angle to such plane, itbecomes necessary to effect an adjustment ofblank 35 angularly about the point of the blank as viewed in plan inFigure 16. Table 90 is slotted. at 91 to provide a passageleading'totherolls 36 and37 forthe final fold'and, to put-the'above requirementsdifferently, it isnecessary toadjust the napkin so thatits newlineoffold maybe brought into registry with "the slot In order to accomplishthis, astop is provided at 93 upon the table 190," and asmall wheel 94Lrotates near the uppermargin of the inclinedftable in the path of theblank asit issues from rolls '31 and 32. The rate of rotation of wheel94 exceeds the normal rate of advance of the blank and consequent lywhen thepe'riphery of wheel 9th engages the blank near "its wider 'end,it accelerates v "the motion of this end of the blank and throws theblank about'an imaginary axis at its point into engagementwith stop 93.

In this position the prospective final; fold line of the blanklregisterswith the guide a slot 91 in table 90, and the'tucker blade 95 passesdownwardly'through saiduslot giving the blank its final cornucopia-foldand pressing such fold between .rolls 36 and 37,- tofbe creased thereby;f 1 l v r The napkin issuing from between rolls 36 and 37 passesdownwardly through slots in the vertical guides 96,-into Contact withdelivery table 43 and beneaththe'confining plates 97.- It is now in thepath of one of the packingmembers whichare carried by cross heads 98reciprocable in guideways;

2; formed by blade 23 must be synchronized withv e 3. moving partsderive the1r 1110131011 from or are roll 26 through intermediate gearsat 117,

geared together at 110 (Fig. 4) and determine the rate of paper travel.The ratio of Aotuatiag connections It will benoted thatall of the partswhich act directly uponthe napkin to fold or crease itsubsequeiitly tothecutting operation perthe movement of rolls 20 and 21 in order thatthe several folds may be formed properly with referenceto the ends ofthe blank severed by blade 23. For this reason all of the connectedmechanically with roll 21, through which power is suppliedto themachine.

The gears 54' and 55, already mentioned,

drive the feed rolls 18 and 19 which are these'gears is such that theperipheral speed of the feed rolls will be considerably slower than thatof the cut off rolls. This has two advantages. The cutting blade isfound to operate smoothly on the, softest napkin paper under suchcircumstances. Also itis possible to vary'the length of the napkin bychangingthe relative rate of paper feed While always pr'eserving thespeed advantage of the cutting roll. For this purpose one I or both ofthe gears 54 and 55 are interroll 26. r

changeable with other gears having a different number of teeth to Varythe relative driving rate; Thereby the length of the napkin may bevaried tosatisfy commercial requirements of, for example, 12 to 14inches and the wear in the felt covers of the feed rolls may also becompensated by proper change gearsto make it possible to use thefeltedrolls over longer periodswithout replace-- ment such as is ordinarilymadenecessary by paperv feed resulting from shaft 56 through a centralgear114 thereon and an intermediate pinion which meshes with a gear 116-on the shaft which carries Pulley 61 for guide belts 60 is driven from118 and 119. Pulleys 62 and 63 run idle. The latter pulley holds the tworuns of belt 6O close together to reduce the de'pth of slot'required .at71 in tucker blade 28; r

Pulley 66, carrying the guide belt 65, is

driven from roll 27 while pulley 67 runs idle. Roll 7 6 is drivenfrom-roll 27 and is grooved to receive belt 7 5 which also runs ingrooves in'roll 26. f P I Belts 7 9 run directlyupon grooves in roll 27and'pulleys 80-and 81 run idle. Pulley 80 holds the two runs ofbelts 7 9close to-- gether-to' reduce the .depth'of slot required at 83 in tuckerblade 33. V

port the. packing plates 44.

Shaft '120' carries the large'gear 121 as shown in Figure 4 by which itis driven directly from the power shaft 56. I Shaft .120

is an important shaft in -the actuation of any of the oscillatory andreciprocable parts 4 as will hereinafter be described. It also carri'esgears 122 which will be noted .just inside of the frame members inFigure4and which drive intermediate gears 123 mountedon studs carried bysaid frame members. These 7 intermediate gears have helical beveledteeth at 124 meshing with similar teeth-out at the ends of the firstcornucopia folding rolls 32.

Rolls 31 are driven from rolls 32 :by'spur gearing at 125. Rolls 36and37are driven by chain 126 from shaft 56. -Shaft58 actuates tuckerblades'28 by means of crank 127, connecting rod 128, crank 129, andshaft136, which carries arms 72. 1'

Shaft drives the tucker blades for the first. and second cornucopiafoldsand. also drivesthe packers as follows:

'The reciprocable tucker blades 33 for the first-set of cornucopiafolding rolls are driven from shaft 120 by crank 130, connecting'rod131,crank 132 (Fig. 4) rock shaft 133 (Fig. 5), rockerarms 134, andlinks 135. (Figs. 9and15.)

The oscillatory tucker blades for the second set of cornucopia foldingrolls are driven from shaft 120 by crank 140, connecting rod 141. (Figs.4 and5), crank 142 (Fig. 7 rock shaft 143, crank disk 144 (Fig.4),connect- 'ing rod 145, crank v146, rock shaft 147, arm

148, flexible link mechanism 149, crank and a set of gear sectors forrotating the tucker blades 95 oppositely on the same axis. The mechanismis shown in Figs. 4, '7, and 8 and includes gear-sector 151 connectedwith crank 150 and mounted on rock shaft 152. Sector 153 meshes withsector 154 on sleeve 155 to which one of thetucking blades 95 isconnected. Gear sector 156 meshes'with sector 151 and oscillates shaft157jon which seetor 158 is mounted to oscillate sector 159 and shaft 160which carries the other tucker 95. Thus the two tuckers are coaxial andare opperated oppositely in synchronism. i

The'packers 44 are operatedfrom shaft 120 (Fig. 10) by means of arms 164mounted on rock shaft 143, the driving connections to such shaft havingbeen described above. Arms 164actuate links 165 connected to slides 9.8upon which rods 167 are mounted to sup- (See also .Figures 4, 5, and15.) The rollers 94 which adjust or position the 7 partially completednapkins are driven by belts 170 from pulleys 171 onshaft120.

The modi eapommgam The entire" organization of the modified constructionshownin Figures 12.to 14 inclusave is very similar'to-that alreadydescribed,

the chief diiferencesbeing a slight rearrange-' ment of the parts forgreater compactness and a different mechanismfor producing the finalcornucopia fold. a

The rearrangement of the .parts'is of no' cornucopia folding rolls werein parallel ver-.

tical planes, as shown in Figure 2. In order to produce the angularlydisposed final fold in the napkin itwas necessary to adjust. the

napkin with reference to the line ofi bite :of the final rolls by meansof thebelt-driv'en friction wheels 94-. This necessity. iseliminated inthe modified construction by setting therolls '36 and 37 at an upwardandin-- Ward inclination as clearly appears in all of. the viewsillustrating the modified construc-,

tion. Figure 12 shows-the machine partially disassembled in ordertocompletely expose the :inwardly and upwardly inclined final foldingrolls 36 and 37in their proper relation to the first cornucopia rolls32and 33 which latter rolls correspondin all particulars to thosealready described. I

The disposition ofthe final folding rolls 36 and 37 in the modifieddevice issuch that their angle will-correspond "exactly with therequired angle for the final fold. The table upon which the napkin isdelivered from the first cornucopia fold rolls 32 and 33 is.

made up of first and second guide plates 175 and 1'? 6, the former ofwhich strips the napkin from the first cornucopia fold roll. The guideplates are separated to provide an angularly disposed slot 91"corresponding with the vertical plane whichuincludes the.

line of bite of rolls 36 and 37 andhence corresponding with the desiredangular disposition of the final fold, (See. Fig. ll.)

Because'of the fact that the final folding rolls 36 and 37'areangnlarly, related in themodified construction it is no longerpossible to use the same tucking blade arrangement which was utilized inthe first described embodiment of the invention. Figure 13 clearlyshowsthe modified arrangement of tucker-blades 38f whereby such bladesare. mounted upon angularly, related shafts 178 i and 179 intergeared bysegments at'180 and.

operated by arm 181 which is linked flexibly at 182 to a connecting rod149 for operationfrom rocker arm 148 in the same manner as the tuckerblades first described.

It will be:understood that this modified plifying the machine byeliminating all nec-' conveyor or folding mechanisms at all points. 7

in its path of travel This not only makes for'great compactness in themachine. but eliminates much of the difficulty heretofore experienced inuneven folding. A feature of e the machine by whlch this result isaccomplished consists in the u'se'of conveyor tape belts and. tuckerblades which are notched to. pass such belts thereby enabling the pa perto be tucked even while it is supported by the conveyor system Referencehas already been madeqto the. fact that the machine is adapted toproduce varying lengths of napkins; vIt is an impon tant fact thatvarying widths of napkins may also be produced without any change oradjustmentof the mechanismbythe simple exi pedient offeeding varyingwidths of paper to the machine. In previous types of napkin folders withwhich I have been familiar this;

has not been possible due to the use of guides and other structure, inthe pathofthe free.

edge of the moving blank; Inspection of the" present machine willdisclose that the blank is gu ded at all points by conveying and foldingmechanism acting on the faced the,

blank, The position ofthe blank in the machine is determined entirely byits folded marginpassingfrom' the folding plate .17 In other words theapexof suchplate determines the plane in which'the folded margin I ofthe sheet moves throughout themachine. It Wlll' befobvious that a mereincrease in the widthofthe paper will have no effect other;

than to increase the extent to which the blank. I y

will project from this predetermined and fixed line of movement of itsfolded margin. There are no guides which requireadjush ment andconsequently it is possiblet o pro-- duce any desiredsize of foldednapkin Within. commercialrequirements by changing the width ofpaper forthe purposeof controlling the width of the completed napkin and changingthe gearing which drives the feeding rolls for thepurpose of alteringthe length of the completed napkin. s

It. will be found upon comparison of the, machine with the statement ofobjects .out. lined above that the machine fully. satisfies such.objectsandis'capable of highly accu rate napkinfolding work to producethe style of napkin shownat 40 in FigureB. 1

I claim: 1

the combination with a set'ofpaperconverb ing'rolls andatuc'ker blademovable to and from said-rolls and adapted to thrust paper 1. In adeviceof the character'described, arrangement is simply an expedient for simtherebetween, of paper guiding and. convey ing means arranged to carrypaper trans? versely of the path of movement of said tucker blade pastsaid rolls and comprising a narrow belt, a pulley adapted to hold thereturn length of the belt adjacent the operative length thereof wherebyto reduce the clearance required in the tucker blade for such belt, thetucker blade, being notched to pass Said belt.

2!- In a device of the character described,

. the combination with a pair of folding'rolls,

of paper'supportingandguiding means compris ng aiconveyor belt adaptedto carry pa- 2 0 belt and mounted for movement between said per pastsaid rolls, and co-operative guide plates opposing said belt and spacedfrom each other in the direction of-paper advance at a pointsubstantially in a plane tangent to the line of bite between said rolls,together with a tuckerblade notched to receive said guide plates to andfromthe line of bite between said rolls whereby to be adapted to thrustbetween said guide plates and into said-rolls paper'supported, guidedand con- ,veyed'by said means.

3." In a device of the-character described,

the combination of a pair of creasing rolls,

' each provided with a longitudinally extendingyieldable rib projectingsomewhat from the adj'acent'peripheral portions of the respective rolland means for driving said rolls in synchromsm, said ribs being disposedfor registering engagement during therotation of the rolls.

4. In a device of the character described,

the combination of a pair of oreasing'rolls,

, each provided with a longitudinally extending yieldable ribprojecting'somewhat from theadjacent peripheral portions of therespective -rolland means for driving said rolls in synchronism, :saidribs being disposed vfor registering engagement during the rotation ofthe rolls,'together with a tucking blade movable to and from said rollsand synchron ized therewith to reach its maximum approach toward saidrolls substantially co-incident with the engagement ofsaid ribs, saidribs being adapted to pluck material from said blade '5. In a device ofthecharacter described, thecombination with a set of creasing rollsprovided with registering longitudinallyextending and radiallyprojecting yieldable ribs adapted to come into engagement slightlybefore reaching the normal line ofbite between said rolls, means forfeeding material past said rolls and a tucking blade movable across thepath of such material toward and from the line of bite between saidrolls, said tucking blade'being synchronized with said rolls whereby toreach its mostadvanced position substantially coincident with the'timeof engagement of said ribs, said position being such that said ribs areadapted to pluck mate= rial from said blade. 9 v

6. In a device of the character described, the combination with meansfor feeding material along a given path including spaced guide: platesintermediate of'said path, of a tucker blade movable transversely ofsaid path intothe space between said guide plates whereby to be adaptedto fold therebetween jecting yieldable rib portions adaptedforcooperation in the engagement of material to be fed between saidrolls-slightly before such material reaches the line of bitetherebetween.

8. In a device of the character described, the combination with apaperconverting machine including means for severing blanks of paper andmeans for acting upon said blanks to fold'them, of-a set of actuatingconnections synchronizing the movement of said severing means. and saidfolding means, a set of rolls controlling web advance to said severingmeans and normally operated at a materially'slower rate thansaid'severing means,

and actuating connections between one of said rolls-and saidfirst'mentioned actuating con: nections provided with means for varyingthe relative rate of operation thereof whereby tofeed differing lengthsof material through.

said severing means. i. I v H 9. In a device of the'characte-rdescribed, the combination with'a set'of feed rolls of a set of cut offrolls, andactuating connections for said rolls so timed as to operatesaid out OK rolls at a higher peripheral speed than said feed rolls,said connections being adapted to vary the relative rate of operation ofsaid feed rolls without exceeding the peripheral rate of said out offrolls, togetherwith folding rolls synchronized with said out off rollsand provided with non-yieldable actuating con-.

nections therewith.

10. In a device of the character described,

anism including feed r'o ls,-cut off rolls, and folding rolls, ofa'triangle plate positioned above said feedrolls'over which a web of'materialis delivered thereto longitudinally creased, and conveying andguiding means positioned alongthe path of material advancebetween theseveral rolls and adapted the combination with pa er converting mechtoact with said rolls substantially continuously upon the face of thematerial only, whereby to maintain such'material in a path determined bythe point of its entry in the machine irrespective of the Width of thematerial.

11. In a device of the character described, the combination of paperconverting mech anism including feed rolls, out off rolls, and

folding rolls,.conveying and guiding means interposed between certain ofsaid rolls and adapted for contact with the face of the paper only, atriangle plate having its apex above said feeding rolls and adapted tocrease paper entering said feed rolls, the apex ofsaid plate beingdeterminative of the line of travel of the folded margin of the paperthrough the converting mechanism, actuating connections betweensaid'rolls, and means for varying the relative rate of operation of saidfeed rolls with respect to said cut off rolls without exceeding theperipheral speed of the latter, whereby varying sizes'of paper blanksmay be handled by said converting mechanism. 7 i 12. In a devlce of thecharacter descrlbed, a means for producing a cornucopia fold lIlaquarter folded napkin comprising means for advancingthe napkin along apredeten mined path, folding rolls disposed ad acent said path withtheir line ofbite at an acute angle to one side of the quarter foldednap kin as it advances upon said path, and a tucker blade adapted tothrust an intermediate portion of the moving napkin between said foldingrolls when the line of bite thereof registers with the desired fold linein said napkin. 7

13. In a device of the character described, the combination with webfeeding means of a set of blank severing and folding rolls havingsubstantially horizontal axes, and a pair of cornucopia folding rollshaving inclined axes adjacent the path of travel of an article deliveredby said first mentioned folding rolls, and a tucking blade synchronizedwith napkin delivery fromsaid first mentioned folding rolls andcooperative with said in;

- ence to the side margins of napkins advancing thereon, and tuckerblades cooperating with said inclinedfolding rolls "and synchronizedwith napkin movement whereby to thrust into said sets of rollssuccessively the inclined napkin portions registering with is folded toa cornucopia outline.

the lines of bite thereof, whereby anapkin '15. In a device of thecharacter described,

the combination with web feeding rolls .of'

cutofl' rolls adapted to sever blanks" from the web, and paper convertinmechanism synchronized with said out rolls forithegad- Vance and foldingof the blanksso severed, said" mechanism comprising conveyor adaptedto'receive blanks from said'cut off rolls, a set'of folding rolls adjacentthe path of said conveyor, a tucker blade associated with saidfolding rollsand adapted to deliver thereto an intermediate portion of ablank 7 I supported by said conveyor, a second conveyor adaptedtoreceive blanks from said:

folding rolls, "and a secondset of folding 'rolls' having their axesinclined :with refer ence to the margin of a blank supported by I saidsecond conveyor, together with a sec ond tucking blade adapted to pressan in clined fold line of a napkin blank so supported into the line ofbite of said second folding rolls. I" c In a'device ofthe characterdescribed, the combination with web feeding rolls of cut off rollsadapted to-se'v'er blanks from the web and paper converting. mechanismsyn-.

chronized with said-cutoff rolls for thead vanceand folding of theblanks so severed,

said mechanism comprising a conveyor adapted to 'receiveblanks fromsaidicut off rolls,

a' set of'folding'rolls adjacentthepath of said conveyor,'a tucker blade"associated with said'folding-rolls and adaptedto; deliver theretoanintermediate portion of ablank supported by said conveyor, 'a secondcon veyor adapted to receive blanks from said foldingrol'ls, said secondset-of-folding rolls having their axes inclinedwith reference tothewmargin' of ablank'supported by said second conveyor'together withaseeond tuck-' ing blade adapted to press an inclined fold line ofa'napkin blankso supported into the lineof bite of said second foldingrolls, a slotted table adapted to receive folded napkins 1 from saidsecond folding rolls, a third set of folding rolls having their line ofbitevin registry with the slot in said'table, and a:

. tucker blade cooperative with said third set of folding rolls tothrust a fold line of said napkin 'throughsaid slot and into the line ofbite of said third set ofjfolding rolls, the slot in said table beinginclined with refer ence to the side of anapkinsupported on said tableat the time of engagement of the tucker blade therewith. a

17 In a folding machine, the combination with means for feedingthematerial along 7 the given path of a set of folding rolls having a lineof bite inclined with respect to said path, a tucker co-acting with saidrolls to feed therebetween material traversingsaid path, a receivingtable at the delivery side of said rolls provided 'witha delivery slotinclined .a material thereover, a tucker movable over with reference tothe path of movementof a point above said table into said slot 7 andadapted to fold therein the material tra delivery of material from saidrolls .on to saidt'able, guide means associated with the J margins ofsaid table at' either side of said predetermined path, of guide'meansfor ma versing said table, and a creasing means p0- sitioned beneathsaid slot to receive, the material from said tucker whereby to creasetherein a secondinclined fold.

-18.- In a folding machine, the combination with a pair of creasingrolls, of a receiving table associated therewith and provided with I aslot inclined with reference to the path of slot and extendingbeyondsaid rolls, a tucker adapted to press Vmateria'l traversing saidtable through said slot, anda second set of folding rolls adapted toreceive material from j said guide means beyondsaid first mentionedrolls. 7 19. In a foldmg device, the combination wlth. means for advancngmaterial alongiaterial on said path comprising a pair of plates spacedat either side of a plane intersecting said path at an angle to'themovement of material thereon, and divergent flanges carried by saidplates and constituting a table adapt-l ed to support such material intraversing said path, a tucker receivable between said plates andsynchronized with said advancing means for action upon anintermediateportion of material advanced by said means along said path, and creasingmeans adapted to receive such material from the tucker ata point remotefrom said path.

1 20. In a folding'machine, the combination with means for feedingthematerial along a predetermined path, of a plurality of mutuallyindependent sets ofcreasing rolls, tuckers associated with said rollsfor pressing material between the lines ofbite thereof,-'and guide meansextending betweensaid rolls, the second set ofrolls having its line ofbitesubstantially parallel to the plane in which material is deliveredfrom the first set of rolls,

but angularly inclined in such plane with I respect to the pathof-delivery. p SAMUEL J. GAMPBELL.-.

